The product you get a free sample of is called CRE-8. This is the kind of stuff you always see on CSI and Math genius films.

“CRE-8 is a water-borne paint and is available in 8 exciting colors. IdeaPaint CRE is high performing, easy to install and is backed by a 10-year warranty. CRE-8 is available in kits that cover 50 sq. ft. of surface. To determine the number of kits you need, multiply the height x width of the areas you want to cover.”